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Square Footage Formula:
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Square footage calculation determines the area of a two-dimensional space measured in square feet. It's essential for various applications including construction, real estate, landscaping, and interior design.
The calculator uses standard geometric formulas to calculate area:
Rectangle: \( SF = \text{length} \times \text{width} \)
Circle: \( SF = \pi \times \text{radius}^2 \)
Triangle: \( SF = \frac{1}{2} \times \text{base} \times \text{height} \)
Where all measurements are in feet and the result is in square feet.
Details: Accurate square footage calculations are crucial for material estimation, cost calculations, space planning, property valuation, and compliance with building codes and regulations.
Tips: Select the shape type, then enter the required dimensions in feet. All values must be positive numbers. The calculator will automatically show the appropriate input fields for your selected shape.
Q1: Why calculate square footage?
A: Square footage calculations help determine material needs, estimate costs, compare property sizes, and ensure proper space utilization.
Q2: How accurate should measurements be?
A: For most applications, measurements to the nearest inch or centimeter are sufficient, though precision requirements vary by application.
Q3: Can I calculate square footage for irregular shapes?
A: This calculator handles standard shapes. For irregular shapes, divide them into regular shapes, calculate each separately, then sum the areas.
Q4: Does square footage include wall thickness?
A: Typically, interior measurements exclude wall thickness, while exterior measurements include it. Always clarify which standard you're using.
Q5: How do I convert to other area units?
A: 1 square foot = 144 square inches = 0.092903 square meters. Multiply by the appropriate conversion factor.